== sanity test 124b: lru resize (performance test) ================================================================================= 17:39:17 (1789076357)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
striped dir -i0 -c2 -H crush  /mnt/lustre/d124b.sanity/disable_lru_resize
 - open/close 713 (time 1789076372.72 total 10.01 last 71.24)
 - open/close 1486 (time 1789076382.72 total 20.01 last 77.27)
 - open/close 2159 (time 1789076392.72 total 30.02 last 67.27)
 - open/close 2790 (time 1789076402.73 total 40.02 last 63.08)
 - open/close 3422 (time 1789076412.73 total 50.03 last 63.15)
 - open/close 4030 (time 1789076422.74 total 60.03 last 60.77)
 - open/close 4476 (time 1789076432.76 total 70.05 last 44.52)
 - open/close 4894 (time 1789076442.77 total 80.07 last 41.74)
 - open/close 5534 (time 1789076452.80 total 90.09 last 63.82)
 - open/close 6183 (time 1789076462.81 total 100.11 last 64.82)
 - open/close 6826 (time 1789076472.82 total 110.12 last 64.24)
 - open/close 7581 (time 1789076482.83 total 120.12 last 75.48)
total: 8000 open/close in 125.71 seconds: 63.64 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 186 seconds
lru_size = 400
400
 - unlinked 0 (time 1789076685 ; total 0 ; last 0)
total: 8000 unlinks in 108 seconds: 74.074074 unlinks/second
striped dir -i0 -c2 -H fnv_1a_64  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 680 (time 1789076808.81 total 10.02 last 67.84)
 - open/close 1323 (time 1789076818.82 total 20.03 last 64.24)
 - open/close 1808 (time 1789076828.82 total 30.04 last 48.48)
 - open/close 2526 (time 1789076838.82 total 40.04 last 71.78)
 - open/close 3292 (time 1789076848.84 total 50.06 last 76.45)
 - open/close 4020 (time 1789076858.84 total 60.06 last 72.77)
 - open/close 4717 (time 1789076868.85 total 70.07 last 69.66)
 - open/close 5471 (time 1789076878.88 total 80.09 last 75.20)
 - open/close 6190 (time 1789076888.88 total 90.10 last 71.87)
 - open/close 6946 (time 1789076898.88 total 100.10 last 75.59)
 - open/close 7710 (time 1789076908.89 total 110.10 last 76.38)
total: 8000 open/close in 113.77 seconds: 70.32 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 92 seconds
lru_size = 4006
4001
ls -la is 50% faster with lru resize enabled
 - unlinked 0 (time 1789077028 ; total 0 ; last 0)
total: 8000 unlinks in 66 seconds: 121.212120 unlinks/second